import random
import string

def generate_package_name():
    # 定义包名的格式
    prefix = "com."

    # 生成随机的字符串作为包名的后缀
    suffix1 = ''.join(random.choices(string.ascii_lowercase, k=10))
    suffix2 = ''.join(random.choices(string.ascii_lowercase, k=10))

    # 拼接前缀和后缀，得到最终的包名
    package_name = prefix + suffix1 + "." + suffix2
    return package_name

if __name__ == '__main__':
    print(generate_package_name())